Centrifugal separator for dust-collecting systems.



J. F. FERNOCH & R. L. BAKER.

OENTRIFUGAL SEPARATOR FOR DUST COLLECTING SYSTEMS.

APPLIGATIOI TILED FEB. 16,1914.

Patented N 0v. 10, 1914.

UTED s'raras RATENT JOSEPH F. FERNQCH AND'RALPI-l L. BAKER, OF CHICAGO, ILLINQIS, ASSIGNORS i51 U. S. STEEL TANK & I'IPE COMPANY, OF CHICAGO, ILLINOIS. A CORPOTELATIGN till.

ILLINOIS.

CENTRIFUGAL SEIPARATOR FOB DUST-COLLECTING SYSTEMS.

To all whom it may concern Be it known that we, JOSEPH F. Fmua'ocn and Ranru L. BAKER, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Centrifugal Separators for Dust-Collecting;

Systems. of which the following is a specification.

This invention relates to centrifugal separators of the general type commonly employed in dust collecting systems for separating the dust, shavings, or other foreign matter from the current of air. In such separators the dust-laden air is introduced tangentially into the circular chamber of the separator, the foreign matter carried by the air being forced by centrifugal action to the outer side of the chamber and then descending through an outlet in the lower end of the chamber, while the purified air escapes through a central outlet at the upper side of the chamber.

It is the object of-pur invention to provide novel and improved means located centrally of the separator casing and adapted to break up the gyratory current of air at the center of the vortex and cause the air to pass in a steady stream out through the exit opening. In this way we eliminate the danger of the outgoing air current carrying with it any of the foreign matter brought into the casing, and we also insure that the outflowing current shall occupy the entire cross section'of the exit passage, so as to prevent any in-rusli of air to cause back pressure upon the fan. e accomplish this result by providing a tubular conduit depend ing from the exit opening at the top olf the separator, said conduit being elbow-shaped, or in other words. being closed at its lower end and having an inlet opening in one side thereof adjacent to the lower end. This elbow-shaped conduit insures the proper exit of the air as will be more fully later described.

In the accompanying drawings Figure l is a side elevation of a centrifugal separatoi embodying the features of our invention. Fig. 2 is a top plan view thereof with parts broken away.

The separator may be of any suitable form, being herein shown as consistingof a cylindrical body 5, having a sub acent Specification of letters Patent.

Patented Nov. till, 1914.

closed by a top wall which is also preferably conical in form but of low pitch. .it the center of this top wall is an outlet 53' through which the purified air escapes from the casing 5.

The dust-laden air is introduced into the separator casing through an inlet pipe 10 disposed tangentially with respect; to tin.- cylindrical body As the air enters the casing it passes in a gyratory path about the wall thereof and under the action of centrifugal force the dust and other foreign matthe wall of the casing and will descend by gravity, and pass into the conical portion 6 and escape through the outlet 7.

Our improved means for controlling the action of the air in passing through the outlet 9 comprises a conduit ll. which depends from the top wall 8 and is secured thereto adjacent to the periphery of the outlet; 9. This conduit is in the shape of an elbow, the inlet opening thereto being at one side of the conduit and the opposite side and the lower end thereof being preferably merged in a curve as clearly shown in Fig. l. in its preferred form the conduit 11 is rectangular in shape, which assists in obstructing whirling motion of the air. After the dust-laden air current has deposited its foreign matter it works inwardly toward the center of the casing 5 and upon striking the conduit ll, the gyratory current is broken up to some extent and is further broken up when the air passes into the inlet opening of the con duit 11. and flows upwardly therein. In passing out of the casing the air current is obliged to make several turns. by reason of which its gyratory action will be eti'cct vely stopped and the air will pass up thrtazgh the conduit 11 and out the opening in a. steady stream filling said conduit.

\Ve claim as our invention:

1. A centrifugal dust separator comprising a casing having a ct. tral outlet. and an elbow-shaped conduit communicating with said outlet and projecting centrally intosaid casing.

2. A centrifugal dust separator compriring a cylindrical casing having an outlet in its upper wall, and a conduit deperuiing ter carried by the air will be thrown againstfrom outlet centrally Within the casing, said conduit being closed. at its lower end ancl having; en inlet opening at one side.

it. centr: ugal dust separator comprising a cylindrical easing having an outlet therein, a conduit communicating with said outlet and. positioned centrally Within said easing s. conduit being rectangular in shape, ha: inner end closed, and havzm outim opening thereinto in one of its sides.

C'J ing a o vliinhi a municating tangentially therewith. said casim: having an outlet centrally in its upper 'ii'ugal dust separator compris l easin an inlet )i e COIl'lb l p w ueeoe wall, and having a dust outlet in its lower end, and a conduit positioned centrally within said casing and having its upper end secured to said upper wall about the periphery of of said conduit being closed and said conduit having an opening for the air in one of its sides.

In testimony whereof We hereunto set our hands in the presence of two Witnesses.

JOSEPH F. FERNOOH. RALPH L. BAKER. In the presence of I. W. FOWLER, O. E. ZU'PlERMEISTER.

said air outlet, the lower end 20 

